Ingredient review
C14-15 Dialkyl Carbonate
INCI: C14-15 DIALKYL CARBONATE
A silky, non-greasy emollient that improves product feel and spreadability, with a low risk of irritation or clogged pores.
In plain English
C14-15 Dialkyl Carbonate is an ingredient that makes lotions and creams feel lightweight and silky on your skin. Think of it as a modern alternative to heavier oils or silicones—it helps products glide on easily and leaves a soft, non-sticky finish. It's made from natural fatty alcohols (often from coconut or palm oil) through a chemical process, so it's considered semi-synthetic. Because it's very gentle and unlikely to clog pores, it's a favorite in formulas for sensitive or acne-prone skin.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
C14-15 Dialkyl Carbonate is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging C14-15 Dialkyl Carbonate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
C14-15 Dialkyl Carbonate is a synthetic ester created by reacting fatty alcohols (derived from plant oils like coconut or palm) with carbonic acid. The result is a clear, odorless liquid that acts as an emollient and skin conditioner.
How it works
It sits on the surface of the skin, filling in tiny gaps between skin cells to create a smooth, soft feel. It also reduces friction, making products easier to spread and absorb quickly without leaving a greasy residue.
Pros
Lightweight feel
Unlike heavier oils, C14-15 Dialkyl Carbonate absorbs quickly and leaves a silky, non-greasy finish—ideal for daytime moisturizers and sunscreens.
Low pore-clogging risk
With a low comedogenic rating, it's unlikely to cause breakouts, making it a safe choice for acne-prone or oily skin types.
Cons and cautions
Semi-synthetic origin
While derived from natural fatty alcohols, it undergoes chemical processing. Some consumers prefer 100% natural or unprocessed ingredients.
Sustainability concerns
The fatty alcohols are often sourced from palm or coconut oil, which can involve deforestation or monoculture farming unless certified sustainable.
Best for
- People with oily or combination skin who want hydration without shine
- Anyone with sensitive or acne-prone skin looking for a gentle emollient
Use caution if
- Those strictly avoiding any synthetic or semi-synthetic ingredients
Usage tips
Safety summary
C14-15 Dialkyl Carbonate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, and no significant toxicity concerns have been reported in available safety assessments.
Research notes
Safety data is supported by industry reviews and regulatory approvals. While not extensively studied in independent clinical trials, its chemical class (dialkyl carbonates) is well-understood and widely used in personal care with a strong safety record.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and EU CosIng database, with no known restrictions.
- Common uses
- Moisturizers, Sunscreens, Serums, Makeup removers, Lip products
- Environmental note
- Sourcing from palm oil can impact rainforests; look for RSPO-certified sustainable palm derivatives if this concerns you.
Good to know
- This ingredient is often used as a silicone alternative in 'silicone-free' formulations.
- It is stable and does not easily oxidize, helping extend product shelf life.
Common questions
What is C14-15 Dialkyl Carbonate in beauty products?
C14-15 Dialkyl Carbonate is an ingredient that makes lotions and creams feel lightweight and silky on your skin. Think of it as a modern alternative to heavier oils or silicones—it helps products glide on easily and leaves a soft, non-sticky finish. It's made from natural fatty alcohols (often from coconut or palm oil) through a chemical process, so it's considered semi-synthetic. Because it's very gentle and unlikely to clog pores, it's a favorite in formulas for sensitive or acne-prone skin.
What does C14-15 Dialkyl Carbonate do in a beauty product?
It sits on the surface of the skin, filling in tiny gaps between skin cells to create a smooth, soft feel. It also reduces friction, making products easier to spread and absorb quickly without leaving a greasy residue.
Is C14-15 Dialkyl Carbonate safe for most people?
C14-15 Dialkyl Carbonate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, and no significant toxicity concerns have been reported in available safety assessments.
Who should be careful with C14-15 Dialkyl Carbonate?
Those strictly avoiding any synthetic or semi-synthetic ingredients
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.